• A new principle of retinoscopy proposes that the endpoint of neutralization be placed at infinity rather than into the aperture of the retinoscope. The advantages of the method are (1) the pupillary reflex is sharply defined and enhanced at neutralization, (2) the pupillary reflex width is equal to the diameter of the smallest aperture of the observation system, (3) the relative speed of the pupillary reflex is equal to 1, that is, the speed of the reflex is that of the scanning speed, and (4) neutralization at infinity is independent of the observation distance. The lens used gives the "net" retinoscopy.
Boeder P, Kolder HE. Neutralization at Infinity in Streak Retinoscopy. Arch Ophthalmol. 1984;102(9):1396–1399. doi:10.1001/archopht.1984.01040031138042
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